page: refcount:5 mapcount:0 mapping:ffff888052841710 index:0x62 pfn:0x540c4
memcg:ffff8880312be000
aops:btrfs_aops ino:107 dentry name(?):"bus"
flags: 0x4fff400000040ab(locked|waiters|uptodate|lru|private|writeback|node=1|zone=1|lastcpupid=0x7ff)
raw: 04fff400000040ab ffffea00015030c8 ffffea0001503148 ffff888052841710
raw: 0000000000000062 0000000000000001 00000005ffffffff ffff8880312be000
page dumped because: VM_BUG_ON_FOLIO(folio_test_writeback(folio))
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Movable, gfp_mask 0x141c4a(GFP_NOFS|__GFP_HIGHMEM|__GFP_COMP|__GFP_HARDWALL|__GFP_MOVABLE|__GFP_WRITE), pid 5329, tgid 5328 (syz.0.0), ts 68843003150, free_ts 0
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556
 prep_new_page mm/page_alloc.c:1564 [inline]
 get_page_from_freelist+0x3649/0x3790 mm/page_alloc.c:3474
 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
 alloc_pages_mpol_noprof+0x3e8/0x680 mm/mempolicy.c:2265
 alloc_pages_noprof mm/mempolicy.c:2345 [inline]
 folio_alloc_noprof+0x128/0x180 mm/mempolicy.c:2352
 filemap_alloc_folio_noprof+0xdf/0x500 mm/filemap.c:1010
 __filemap_get_folio+0x446/0xbd0 mm/filemap.c:1952
 prepare_one_folio+0xb6/0xa20 fs/btrfs/file.c:906
 btrfs_buffered_write+0x6bd/0x1150 fs/btrfs/file.c:1233
 btrfs_direct_write+0x52d/0xa30 fs/btrfs/direct-io.c:951
 btrfs_do_write_iter+0x2a0/0x760 fs/btrfs/file.c:1396
 do_iter_readv_writev+0x600/0x880
 vfs_writev+0x376/0xba0 fs/read_write.c:1050
 do_pwritev fs/read_write.c:1146 [inline]
 __do_sys_pwritev2 fs/read_write.c:1204 [inline]
 __se_sys_pwritev2+0x196/0x2b0 fs/read_write.c:1195
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
page_owner free stack trace missing
------------[ cut here ]------------
kernel BUG at mm/page-writeback.c:3119!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 1041 Comm: kworker/u4:9 Not tainted 6.12.0-syzkaller-07749-g28eb75e178d3 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: btrfs-delalloc btrfs_work_helper
RIP: 0010:__folio_start_writeback+0xc06/0x1050 mm/page-writeback.c:3119
Code: 25 ff 0f 00 00 0f 84 d3 00 00 00 e8 64 b2 c3 ff e9 ba f5 ff ff e8 5a b2 c3 ff 4c 89 f7 48 c7 c6 e0 2b 14 8c e8 bb 05 10 00 90 <0f> 0b e8 43 b2 c3 ff 4c 89 f7 48 c7 c6 40 32 14 8c e8 a4 05 10 00
RSP: 0018:ffffc9000238f500 EFLAGS: 00010246
RAX: 7256830d5237cd00 RBX: 0000000000000002 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: ffffffff8c0ad300 RDI: 0000000000000001
RBP: ffffc9000238f670 R08: ffffffff942ed987 R09: 1ffffffff285db30
R10: dffffc0000000000 R11: fffffbfff285db31 R12: 0000000000000000
R13: 1ffff92000471eac R14: ffffea0001503100 R15: ffff888052841710
FS:  0000000000000000(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000557fdd2eb850 CR3: 0000000011dfe000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 process_one_folio fs/btrfs/extent_io.c:187 [inline]
 __process_folios_contig+0x31c/0x540 fs/btrfs/extent_io.c:216
 submit_one_async_extent fs/btrfs/inode.c:1229 [inline]
 submit_compressed_extents+0xdb3/0x16e0 fs/btrfs/inode.c:1632
 run_ordered_work fs/btrfs/async-thread.c:245 [inline]
 btrfs_work_helper+0x56b/0xc50 fs/btrfs/async-thread.c:324
 process_one_work kernel/workqueue.c:3229 [inline]
 process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
 worker_thread+0x870/0xd30 kernel/workqueue.c:3391
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__folio_start_writeback+0xc06/0x1050 mm/page-writeback.c:3119
Code: 25 ff 0f 00 00 0f 84 d3 00 00 00 e8 64 b2 c3 ff e9 ba f5 ff ff e8 5a b2 c3 ff 4c 89 f7 48 c7 c6 e0 2b 14 8c e8 bb 05 10 00 90 <0f> 0b e8 43 b2 c3 ff 4c 89 f7 48 c7 c6 40 32 14 8c e8 a4 05 10 00
RSP: 0018:ffffc9000238f500 EFLAGS: 00010246
RAX: 7256830d5237cd00 RBX: 0000000000000002 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: ffffffff8c0ad300 RDI: 0000000000000001
RBP: ffffc9000238f670 R08: ffffffff942ed987 R09: 1ffffffff285db30
R10: dffffc0000000000 R11: fffffbfff285db31 R12: 0000000000000000
R13: 1ffff92000471eac R14: ffffea0001503100 R15: ffff888052841710
FS:  0000000000000000(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000557fdd2eb850 CR3: 0000000011e90000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400